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Topic Review (Newest First)

12-21-2012 03:42 PM

ugn

Thanks, thanks!
Got ~15 tanks in the house, from 46L to 250L so I'll try them on different setups and order some with higher wattage also I guess

The spread on the floodlight is advertised as 120 degrees, I think it's more like 90 degrees on the short axis and 120 on the long axis.

Depending on how close to the top of your tank you want these (right on top of the lid for example), you want to pay attention to that. If you're using something that is very shallow for its length (like a 55 or a 12L) you probably want to set them up landscape-orientation and space them evenly on the top, one flood per foot of tank length.

If you're using a tank that is deeper than 12" (like a 40b or a 50 or 75), you might think about putting them in portrait-orientation, and closer together lengthwise, maybe a flood per 8" of tank length.

What I like most about my LEDs is how directional the light is, spill from the tank on to the floor or splash onto the wall is significantly less than any reflectorized incandescent or fluorescents that I have.

If used on a 12" high tank (the aforementioned 15, 20L) and right on the top, 12 or less inches from lamp to substrate, it could be very bright indeed with just 10w lamps. For 18+" high tanks (40B, 55, hexes and all manner of other bigger tanks) you might think about the higher wattage emitters.

Thanks for the feedback
I'we got two on the way to test out, gonna use them (the plan is to use 4) over a 200L/53Gal. My current LED 'lays' on top of my tank and water is splashing and killing them :/
Tired of fixing them and want to try something different.

The nice ting about there is that they come with a driver, ready just to plugg in.

Do you got any pictures of your current setup? Curious on the angel they spread.

12-16-2012 07:10 PM

jarvitron

I've got two 10w, both currently flecked with water splash on the lens. They work great, different vendors offer different wiring configs, two or three wire and a large variety of lead lengths, but they're all basically the same "outdoor safe" weatherproofing, barely warm to the touch after hours of use and very bright. At $16 and only needing a plug end crimped on, they're basically the only aquarium lights I'll buy from here on out. I'm thinking about redoing my 35 hex as a planted tank and considering the 20/30w units to light it.

12-16-2012 06:04 PM

ugn

Have anyone tried: (cheap 10W from thebay)

Having problems with my LED's fried because of water splash.. Maybe this could be a easy solution?

11-28-2012 02:52 PM

csf

I've gotten the kit set up with a meanwell 240W, 50V driver. Using 16 LEDS now (8 of each). I have an extra 4 but haven't used them yet. Using about 900mA per LED.

Seems brighter, but tank is having to adjust and CO2 and dosing weren't running right (good enough for 3 old 55W CFs, problems showed up when going to ~170W of LED).

Sitting about 6" over water using the square tube heat sink w/ forced air cooling. Quite warm, but could leave finger on for a while w/o burning (10+ secs).

10-13-2012 02:07 AM

boxhead1990

Im running 12 3w's over my 40 breeder and neeed more

Sent from my ST25a

10-06-2012 12:18 PM

csf

I got a handful of LEDs w/ 60 degree lenses from [Ebay Link Removed] Trying to get a setup over my 75 gallon planted.

Looking at driver options now. Looking at something around 6-8 LEDs per side of the tank for 12-16 total. I've currently got a 4x55 AHS CF setup.

Working on driver options now, I have access to some old computer power supplies, so a buck puck or a meanwell or something. One meanwell could handle a few in a series / parallel grid vs. individual drivers which would be a wiring mess.